Another mirror thread??

rocnrol · September 11, 2016

Sure... why not [emoji1] I bought my 2500 mainly because of the interior (bucket seats, center console, heated seats) and the color, it matches our trailer so well it's like they were painted together.

But it came with the useless normal mirrors. I've watched with interest all the write ups by people, what mirrors to get, wiring, so on. I finally went to the dealership and checked it out.

GM has it all figured out for us guys now wishing to add the mirrors, and have supplied the dealership a check list based off of your Vin. From that I was given the mirror kit number and the two door harness I would need. I was also told I would have to do a BCM reflash.

I wasn't convinced about the need for the harnesses or the reflash, so I got the harnesses just in case.

There's more than enough vids on YouTube that shows how to open up the doors, so that was easy.

First thing I noticed was the required 4th hole was already there, no need for drilling for me, Sweet!!

I compared the plugs from the original mirrors to the plug of the new mirrors and seen that the new ones had more wires in it, so I used the new harness.

I was impressed at how complete it was, all the little clips and braces were on it, so no reusing the old stuff that was a little damaged from removal.

Installation was a simple plug and play affair, and testing showed I had full operation of all my original functions, power adjust of the mirrors and heat, plus the new features of the tow mirrors, the marker light on the front, the signal light in the mirror, and the LED illumination lights that come on with the switch on the dash that turn on the lights in the box and the third light [emoji106]

Here is a picture of the part numbers

I didn't have to get the BCM reflashed to get these to work either, so saved the $100 bucks there, plus saved the 4 hrs of labor quoted to install them. [emoji41]

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SouthpawHD · September 11, 2016

Great write-up, thanks!!! I may be doing this next towing season.

jhplak325 · September 12, 2016

All trucks need the wire harness, not all trucks need programming, pre AVF trucks need a jumper harness also and Flint, MI built trucks from my under standing already has the 4th hole.

Jlash · September 13, 2016

is the power folding feature retained?

rocnrol · September 14, 2016

is the power folding feature retained?

In my case I never had power fold to begin with. After doing my install, if you get the parts your dealership recommends, you should be fine [emoji41]

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rocnrol · September 14, 2016

All trucks need the wire harness, not all trucks need programming, pre AVF trucks need a jumper harness also and Flint, MI built trucks from my under standing already has the 4th hole.

What's pre AVF, and I'll check to see where mine is built

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jhplak325 · September 15, 2016

Trucks built after August 14, 2014 has an rpo code of AVF, trucks built before this date do not have this RPO code.

DMAXNAZ · September 16, 2016

So the new ones power fold then?

rocnrol · September 16, 2016

So the new ones power fold then?

Nope, I never had that option to begin with.

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rocnrol · September 16, 2016

Trucks built after August 14, 2014 has an rpo code of AVF, trucks built before this date do not have this RPO code.

Gotcha, I will look for that RPO code. I did confirm my truck is a Flint Mich truck. So that gives validity to your suspicions

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DMAXNAZ · September 16, 2016

I have power camper, manual folding mirrors now, but I need ones that power fold. I have to do them manually every time I come and go at my house. It really sucks when it's pouring rain or snowing like crazy. I assume power fold is part of the reflash then??

DMAXNAZ · September 17, 2016

Just left my local dealer. They said they have no list. They also said if they weren't power fold to begin with, there is no way to make the new power fold ones fold function work even with a reflash.

rocnrol · September 18, 2016

Just left my local dealer. They said they have no list. They also said if they weren't power fold to begin with, there is no way to make the new power fold ones fold function work even with a reflash.

I guess what I was trying to say is that, yes, if you don't already have power fold, then you still won't have power fold with the new tow mirrors, regardless of the new harness or a reflash. Power fold mirrors have a completely different button on the arm rest then the non-power fold. I'm not completely sure what the reflash is for as my mirrors functioned perfectly with out it. I found the check list my dealer used on the interwebs at one point, I'll look for it again,

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